n. 旋转, 盘绕

[ noun ]
the act of turning or winding or folding around a central axis
<noun.act>

Circumvolution \Cir`cum*vo*lu"tion\, n. [See {Circumvolve}.]
1. The act of rolling round; the state of being rolled.

2. A thing rolled round another. --Arbuthnot.

3. A roundabout procedure; a circumlocution.

He had neither time nor temper for sentimental
circumvolutions. --Beaconsfield.